SCHOOL OF CIVIL ENGINEERING AND CONSTRUCTION

FACULTY OF SCIENCE, ENGINEERING & COMPUTING

Geotechnical Engineering 1

LEVEL: 5 MODULE: CE2045

Quick Un-Drained Triaxial Test

Report Author: Keith

GROUP MEMBERS: Ahmed Ahmed K1034749 Villamar Rodriguez K0916719

DATE OF EXPERIMENT: 4 February 2013

* Table of Contents Page *
1 Introduction and Objectives 2
2 Experimental Results 7 2.1 Raw Results 7 2.2 Graph 8 2.3 Final Results 9
3 Analysis and Discussion 10 3.1 Meaning of Results 10
4 Conclusion 11
5 References 12
6 Appendices 13

Introduction & objectives

The Tri-Axial test is a widely practiced
However there may be a couple of factors that may render the final results incorrect to a certain extent. Firstly, no correction or allowance was offered on the behalf of the strength of the rubber membrane used to confine the soil samples. The strength of membrane would have been higher than the shear strength of the soil and it should have been adjusted in the results accordingly. Secondly, the experiment was not repeated for each sample at their cell pressures thus there was no service for checking for consistency of the results observed and knowing if there were any errors.

References

1. Head, K. H. (1982) Manual of soil laboratory testing, Vol 2 Plymouth: Pentech Press 2. BS EN 1377-8:1990 Methods of test for soils for civil engineering purposes – Part 8: Shear strength tests (effective stress) [Online] available from bsol.bsigroup.com
3. Triaxial test
< http://www.geotechdata.info/geotest/triaxial-test>
[Date Accesed: 11-03-2013]
4. Bishop, A. W. Henkel, D. J. (1957) The Measurement Of Soil Properties in The Triaxial Test, E. Arnold
5. Donaghe, R. T., Chaney, R. C., Silver, M. L. (1988) Advanced Triaxial Testing of Soil and Rock, STP 977, Illustrated, ASTM International.

Appendices

Fig 1: Test Equipment Fig 2: Prepared Soil Sample
Fig 3: Soil